12191691162 has 16 divisors (see below), whose sum is σ = 27866722752. Its totient is φ = 3483340320.

The previous prime is 12191691137. The next prime is 12191691181. The reversal of 12191691162 is 26119619121.

It is a self number, because there is not a number n which added to its sum of digits gives 12191691162.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145139139 + ... + 145139222.

It is an arithmetic number, because the mean of its divisors is an integer number (1741670172).

Almost surely, 2^12191691162 is an apocalyptic number.

12191691162 is an abundant number, since it is smaller than the sum of its proper divisors (15675031590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12191691162 is a wasteful number, since it uses less digits than its factorization.

12191691162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290278373.

The product of its digits is 11664, while the sum is 39.

The spelling of 12191691162 in words is "twelve billion, one hundred ninety-one million, six hundred ninety-one thousand, one hundred sixty-two".